1)b
2)We can't give like emp-id,it will through error
3)a
4)d.The data type of a column cannot be modified if there is data in the column
5)d
6)d(The cursor does not need to be explicitly closed.)
7)c(An arithmetic expression must be added that invokes the salary increment in the SELECT clause of the SELECT statement
9)c SQL%FOUND
10)d
11)d
12)b
13)b
14)d
15)a
16)a
17)c
18)a
19)b
20)c
21)c
22)d
23)c
24)a
25)a
